91. Solving a chemistry problem

16. For redox cell type:
Pt | A, B || C, D | Pt
using the standard electrode potentials of half-cells, write an equation and calculate the equilibrium constants of the oxidation-reduction reaction. Calculate the EMF of the element at T = 298 K. Indicate whether it is possible to practically change the direction of the reaction by changing the concentration of the components. Take aH2O = 1 an = 0.2
N option A B C D aA aB aC aD
16 V3 V2 Tl3 Tl2 0.15 0.005 0.005 0.01
(H and H2O are involved in the reaction)